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Preparation method of multifunctional magnetic targeting nano-drug carrier

A nano-drug carrier and multi-functional technology, applied in nano-drugs, drug combinations, drug delivery, etc., can solve the problems of difficult labeling of tumor tissue, easy transfer of original cancer cells, and large toxic and side effects, so as to improve drug delivery efficiency, antibacterial Excellent performance and large specific surface area

Inactive Publication Date: 2021-10-26
苏州广林皓医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the tumor tissue is not easy to identify during surgical treatment, and the original cancer cells are easy to transfer, it will lead to easy recurrence after surgery
However, chemotherapy and radiotherapy have obvious killing effects on normal tissues and cells, with large toxic and side effects, and tumor cells are easily tolerant to chemotherapy and radiotherapy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Take 250 mg of iron sulfate and 200 mg of cellulose in deionized water, and the pH of the ammonia water regulation system is 10. The resulting product was transferred into a high pressure reaction kettle, and the heat was heated at 220 ° C for 8 h. After cooling, vacuum filtration was vacuum filtered, and the red product was filtered, and the product was washed with deionized water, and then dried at a constant temperature drying tank at an 80 ° C. The dried sample was taken out and then calcined in a clean crucible at 500 ° C for 2 h. (2) 30 mg of silver nitrate was dissolved in 20 ml of n-butanol, and mixed with uniform and warmed to 60 ° C, add a dispersed tetrashydoxide solution, and the temperature continued to 90 ° C for 2 h. Cool to the room temperature magnetic separation product and washed repeatedly with ethanol. (3) Fe 3 O 4 -AG @ c @ Moo 2 The preparation process is: 120 mg of bimetal particles dissolved in 50 ml of deionized water to oscillate 20 min, then ...

Embodiment 2

[0023] (1) Take 330 mg of hexahydrate and 300 mg of glucose dissolved in deionized water, and the pH of the ammonia water regulation system is added to greater than 10. The resulting product was transferred into a high pressure reaction kettle, and the heat was hot in 200 ° C for 10 h. After cooling, vacuum filtration was vacuum, filtered to give a red product, and then washed with deionized water, and then dried at a constant temperature drying tank at 60 ° C. The dried sample was taken out and then calcined in a clean crucible at 450 ° C for 2 h. (2) 20 mg of silver nitrate was dissolved in 15 ml of isopropanol, and the mixture was mixed after mixing to 70 ° C, and the dispersed tetrashydoxide was added, and the temperature continued to 90 ° C for 2 h. Cool to the room temperature magnetic separation product and washed repeatedly with ethanol. (3) Fe 3 O 4 -AG @ c @ Moo 2 The preparation process is: 100 mg of bimetal particles dissolved in 50 ml of deionized water, the ultrasoni...

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PUM

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Abstract

The invention belongs to the technical field of nano biotechnology, and relates to a preparation method of a multifunctional magnetic targeting nano-drug carrier. Through composite metal particles and surface functional modification, the carrier has a strong magnetic field response mechanism, a biomolecular imaging technology and a photothermal therapy. Due to the formation of a cavity structure and the compounding of a graphene with the large specific surface area, drug binding active sites of carrier are increased, and the targeted drug delivery efficiency is improved. The biological enzyme protection layer on the outer layer of the carrier improves the biocompatibility of the carrier and reduces the problem of systemic release of the medicine.

Description

Technical field [0001] The present invention belongs to the field of nano-biological technology, and a method of preparing a multi-functional magnetic targeting nano-drug carrier. Background technique [0002] The means of traditional treatment of cancer mainly includes surgical treatment, chemotherapy, radiotherapy, and drug targeted therapy. These treatment methods can alleviate the condition to some extent, but there is a shortcomibility of the treatment of high risk, and poisonous side effects. Chemotherapy still occupies a large share. Regardless of which treatment method, there is a certain defect and insufficient. If the tumor tissue is not easy to identify during the surgical treatment, and the raw carcinoma cells are easily metastasis, it can lead to prolonged recurrence. Chemotherapy and radiotherapy have obvious killing effects of normal tissues and cells, poisoned side effects, and tumor cells are tolerated to chemotherapy and radiotherapy. Magnetic drug targeting the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K9/51A61K47/02A61K47/42A61K47/69A61K41/00A61K45/06A61K49/04A61P35/00B82Y5/00B82Y25/00B82Y30/00B82Y40/00
CPCA61K9/0009A61K41/00A61K47/6923A61K9/5169A61K45/06A61K41/0052A61P35/00A61K49/04B82Y5/00B82Y30/00B82Y40/00B82Y25/00
Inventor 高波朱广林尹俊太付海洋陈波
Owner 苏州广林皓医药科技有限公司